Chapter 5-7 Flashcards
Arabic numeral systems
1,2,3,4, etc.
Roman numeral system
I,II,III,IV,V etc.
numerator
top number of a fraction
denominator
bottom number of a fraction
proper fraction
examples 1/4 or 3/4
improper fraction
examples 5/4 or 7/4
mixed fraction
examples 1 1/2 or 1 1/5
convert improper to mixed fraction
examples 5/4 = 1 1/4
adding and subtracting fractions
get the lowest common denominator and then add or subtract
adding and subtracting decimals
line up decimal places and then add or subtract the numbers
what is a ratio?
comparing one number with another number
what is a proportion
express equality between two ratios
metric system
- based on units of 10
- weight measured in grams
- volume is measured in liters
- length is measured in meters
apothecary system
- old English system
- weight: grains, drams, ounces, pounds
- volume: minims, drams, ounces, pints, quarts, gallons
household system
drop, teaspoon, tablespoon, ounce, cup, pint, quart, gallon
mg to mcg
1 mg = 1000 mcg
oz to lbs
16 oz = 1 lbs
tbsp to tsp to ml
1 tbsp = 3 tsp = 15 ml
fl oz to ml
1 fl oz = 29.57 ml
kg to lbs
1 kg = 2.2 lb
prefixes of metric system relate to each other
mega is larger than kilo and the micro is smaller than milli which is smaller than centi
measurement of insulin and heparin
measured in units
measurement of sodium and potassium
measured in equivalents and milliequivalents
Celsius freezing point
0 degrees
